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选取某火电厂汽机房和磨煤机房组成的框———排架结构作为主厂房的计算模型，分析了主厂房的自振特性，并采用振型分解反应谱法详细计算了主厂房在６—８度地震影响下结构各部分的内力及变形，最后根据结构控制点在各烈度下的位移量值，给出了主厂房的震害预测结果。
Selecting the frame of the steam turbine room and coal mill room of a thermal power plant as the calculation model of the main building, the natural vibration characteristics of the main building are analyzed, and the main building is calculated in detail using the vibration mode decomposition response spectrum method. The internal forces and deformations of various parts of the structure under the influence of an earthquake at an altitude of 8 degrees. Finally, the prediction results of the earthquake damage of the main building are given based on the displacement values of the structure control points at each intensity.